反应详情

3-Bromophenylacetonitrile (5.0 g, 26 mmol) and 1,2-dibromoethane (6.6 mL, 77 mmol) were added to a solution of benzyltriethylammonium chloride (0.30 g, 1.3 mmol) in 50% sodium hydroxide aqueous solution (20 mL), and the mixture was stirred at room temperature overnight. Ice-water (70 mL) was added to the reaction mixture, and the whole was extracted with ethyl acetate (50 mL). The organic layer was washed with brine (30 mL), and dried over anhydrous magnesium sulfate. After the solvent was evaporated under reduced pressure, the residue was purified by silica gel column chromatography to give the title reference compound (5.4 q) as brown oil (yield 95%).

1. extractionthe whole was extracted with ethyl acetate (50 mL)
2. washThe organic layer was washed with brine (30 mL)
3. dry with materialdried over anhydrous magnesium sulfate
4. customAfter the solvent was evaporated under reduced pressure
5. customthe residue was purified by silica gel column chromatography